1. Embryonic potential and stem cells;Agar;Bioethics,2007
2. In the world of Dolly, when does a human embryo acquire respect?;Cameron;Journal of Medical Ethics,2005
3. Respect for Persons;Downie,1969
4. Establishment in culture of pluripotent cells from mouse embryos;Evans;Nature,1981
5. Geron Initiates Clinical Trial of Human Embryonic Stem Cell-Based Therapy;Geron,2010